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| author |   Lorenzo Bianconi <lorenzo@kernel.org> | 2024-02-12 10:50:55 +0100 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2024-02-13 19:22:30 -0800 |
| commit | 4d2bb0bfe8741a8778e0053f31a4e0f0cba80e8b (patch) | |
| tree | af16927cee0ffcd322027b597f832fd0710a436f /drivers/net/tun.c | |
| parent | net: add generic percpu page_pool allocator (diff) | |
| download | wireguard-linux-4d2bb0bfe8741a8778e0053f31a4e0f0cba80e8b.tar.xz wireguard-linux-4d2bb0bfe8741a8778e0053f31a4e0f0cba80e8b.zip | |
xdp: rely on skb pointer reference in do_xdp_generic and netif_receive_generic_xdp
Rely on skb pointer reference instead of the skb pointer in do_xdp_generic
and netif_receive_generic_xdp routine signatures.
This is a preliminary patch to add multi-buff support for xdp running in
generic mode where we will need to reallocate the skb to avoid
linearization and we will need to make it visible to do_xdp_generic()
caller.
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Reviewed-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/c09415b1f48c8620ef4d76deed35050a7bddf7c2.1707729884.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/tun.c')
| -rw-r--r-- | drivers/net/tun.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/tun.c b/drivers/net/tun.c index b472f2c972d8..bc80fc1d576e 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1926,7 +1926,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile, rcu_read_lock(); xdp_prog = rcu_dereference(tun->xdp_prog); if (xdp_prog) { - ret = do_xdp_generic(xdp_prog, skb); + ret = do_xdp_generic(xdp_prog, &skb); if (ret != XDP_PASS) { rcu_read_unlock(); local_bh_enable(); @@ -2516,7 +2516,7 @@ build: skb_record_rx_queue(skb, tfile->queue_index); if (skb_xdp) { - ret = do_xdp_generic(xdp_prog, skb); + ret = do_xdp_generic(xdp_prog, &skb); if (ret != XDP_PASS) { ret = 0; goto out; |